I am sticking this pipe on my 2 stroke resto, and noticed quite a bit of slack between the end of the pipe and where the silencer slides into place? Nothing in the packaging as far as a rubber sleeve (its been 12 years but i think i remember somethng like this?) to make that seal nice and tight? Thanks for your help.
Also did we used to run compression orings between the head and the pipe? I found nothing when I removed the old rusty bills pipe. And again nothing in the FMF packaging as far as new ones either? Thanks again... Just don't want my YZ to sound like a ratty 1991 kx is all.
I had an 04 YZ250 and I also worked at FMF years ago. If I remember, where the pipe and silencer meet up there should be a rubber piece that slides over the two to form a seal.....but that wasn't supplied by FMF, it was an OE Yamaha part. Also, where the pipe slides into the head, there should be two runner o-rings that fit into the two grooves that are on the outside of the pipe right where it slips into the head. Those I believe use to be supplied by FMF.
O-rings on the inside of the pipe on the YZ.
Rubber sleeve from Yamaha = JOINT, EXHAUST # 3JE-14615-01-00
Move that one a few feet to the right and let us see the one behind it with dem pro tapers.
If you're not mixing gas, you're not haulin ass.
I have always tossed that rubber joint between the pipe and silencer into the trash. Run a bead of red silicone between the mating surfaces to get a better seal.